You know, if a band wants to split an album into two parts for artistic reasons and still charge a single-album price, I guess I can see that. (The new Porky Tree comes to mind, or old faves like Wilco's Being There.)

Similarly, if they have a metric assload of material (like 140 minutes or something), go ahead and put out that double-disc if you think it's all worth it.

But yeah, asking a premium price for a 16-song collection when 15 songs would have been less... that's just a douche move no matter how you slice it.